1JMW | pdb_00001jmw

Propagating Conformational Changes Over Long (And Short) Distances

• PDB DOI: https://doi.org/10.2210/pdb1JMW/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Salmonella enterica subsp. enterica serovar Typhimurium
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2001-07-20 Released: 2001-08-15 
• Deposition Author(s): Koshland Jr., D.E., Yu, E.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 
  0.274 (Depositor) 
• R-Value Work: 
  0.244 (Depositor) 
• R-Value Observed: 
  0.096 (Depositor) 

Literature

Propagating conformational changes over long (and short) distances in proteins.

Yu, E.W., Koshland Jr., D.E.

(2001) Proc Natl Acad Sci U S A 98: 9517-9520

• PubMed: 11504940 
• DOI: https://doi.org/10.1073/pnas.161239298
• Primary Citation Related Structures: 
  1JMW


• PubMed Abstract: 
  

  The problem of the propagation of conformational changes over long distances or through a closely packed protein is shown to fit a model of a ligand-induced conformational change between two protein states selected by evolution. Moreover, the kinetics of the pathway between these states is also selected so that the energy of ligand binding and the speed of the transition between conformational states are physiologically appropriate. The crystallographic data of a wild-type aspartate receptor that has negative cooperativity and a mutant that has no cooperativity but has native transmembrane signaling are shown to support this model.

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Organizational Affiliation: 
• Department of Molecular and Cell Biology, University of California, Berkeley 94720-3206, USA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 16.35 kDa 
• Atom Count: 1,317 
• Modeled Residue Count: 146 
• Deposited Residue Count: 146 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
methyl-accepting chemotaxis protein II	A	146	Salmonella enterica subsp. enterica serovar Typhimurium	Mutation(s): 1
UniProt
Find proteins for P02941 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P02941  Go to UniProtKB:  P02941

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free:  0.274 (Depositor) 
• R-Value Work:  0.244 (Depositor) 
• R-Value Observed: 0.096 (Depositor) 

Space Group: I 4₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 65.019	α = 90
b = 65.019	β = 90
c = 68.754	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-08-15 
Deposition Author(s): Koshland Jr., D.E., Yu, E.W.

Revision History  

• Version 1.0: 2001-08-15
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2021-10-27
  Changes: Database references
• Version 1.4: 2024-02-07
  Changes: Data collection